Last updated: August 21, 2025
September in Armacao, Brazil, presents a delightful blend of mild temperatures and refreshing coastal humidity. With a maximum of 25°C (77°F) and an average of 19°C (66°F), the weather is perfect for exploring the scenic beauty of the region. Visitors should be prepared for some rain, as the month sees 104 mm (4.1 inches) of precipitation over 13 days, contributing to the lush landscape. The air remains comfortably humid at 82%, creating an enticing atmosphere for those looking to enjoy the vibrant culture and natural wonders of this coastal gem.
In September, Armacao experiences a gentle transition from the cooler winter months to the warmth of spring. With minimum temperatures rising to 13°C (55°F) and maximums reaching 25°C (77°F), the average temperature settles comfortably around 19°C (66°F). This month signifies a noteworthy shift, as the days start to feel warmer compared to the colder July and August, which recorded lows of 9°C (48°F) and 10°C (50°F) respectively. As the landscape begins to bloom, the inviting climate of September sets the perfect stage for outdoor activities and enjoying the natural beauty of this vibrant Brazilian locale.
In September, Armacao experiences a moderate shift in weather as precipitation amounts rise to 104 mm (4.1 in) over 13 days of rain. This marks a notable increase from the drier months of July and August, where rainfall was considerably lower at 51 mm and 63 mm, respectively. This uptick signals the transitional phase into a wetter season, setting the tone for October’s higher average of 141 mm. While September's rainfall doesn’t reach the peaks of the earlier months, it maintains a balance that nourishes the lush landscapes of this beautiful Brazilian coastal town, providing a refreshing reprieve as it edges into the more abundant months ahead.
In Armacao, Brazil, September ushers in a slight decrease in humidity, averaging around 82%. While this month is still quite humid, it shows a notable drop from the peak summer months, where humidity levels hover around 85% to 88%. This transitional period hints at the onset of drier conditions, as the humidity gradually declines from the high 80s% seen in the first half of the year and into the early fall. Interestingly, September remains quite humid compared to the cooler months of July and August, indicating that while the oppressive summer heat may be receding, the air still carries a notable moisture content, creating a warm and sultry atmosphere.
In September, Armacao, Brazil, experiences a UV Index of 10, categorizing it as very high and marking a return to increased sun intensity after the more moderate summer months. With a burn time of just 15 minutes, caution is essential for those enjoying the vibrant beach lifestyle, especially as the UV levels begin to rise again after the relatively milder conditions of June and July. This trend highlights the significant seasonal shifts in UV exposure, where months like January and February peak at an extreme UV Index of 15. As summer approaches, ensuring proper sun protection becomes increasingly vital. For more detailed information on UV levels throughout the year, check out the Armacao UV Index.
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As summer transitions into the vibrant hues of autumn, September in Armação, Brazil boasts an impressive 244 hours of sunshine, making it a delightful time for beachgoers and outdoor enthusiasts. While this marks a slight dip from the sun-drenched peaks of the earlier months like March's 307 hours, it remains consistent with the overall trend of the region, where sunshine hours gradually decline from the mid-year highs. The gentle warmth of September heralds the approach of lengthy, sun-filled days ahead, notably leading into November, which shines brightly with 313 hours. This gradual shift not only signifies the end of winter but also promises a tapestry of sunlit adventures and picturesque coastal views for those ready to embrace the charm of Brazil's coastline.
In Armação, Brazil, the likelihood of sunny weather in September stands at a moderate 26%, indicating a somewhat cloudy start to the spring season. As we analyze the trend over the year, it's clear that September follows a more promising period from May to July, where the chances of sunshine peak—reaching 53% in May and escalating to 57% in July. However, the likelihood dips significantly in August and continues its downward trend into September, trailing behind the early months of the year, particularly February with its robust 48% chance. This pattern reveals that while autumn in Armação may not guarantee an abundance of sunny days, visitors can still find moments of bright sunshine, albeit less frequently than in the earlier months.
In Armacao, Brazil, September heralds the gradual transition toward longer days, offering about 11 hours of daylight. This month marks a slight recovery from the shorter daylight of mid-year, aligning closely with August's similar duration. As the year progresses from the longer days of January and February—each boasting a full 13 hours—the trends clearly highlight a rhythmic cycle of light that peaks in the first half of the year. Following September, daylight begins to extend again in October, reaching 12 hours, promising a return to the vibrant, sun-filled days that characterize Brazilian summers. The steady ebb and flow of daylight not only influences the local atmosphere but also invites both residents and visitors to bask in the beautiful transitions of seasonal light.
In Armacao, Brazil, September reveals a noticeable uptick in wind activity, with average speeds reaching 4.2 m/s (9 mph)—the highest of the month, right before a slight increase in October. As the summer winds down, September stands out against the backdrop of the year, showing a trend of increasing wind speeds from the quieter months of January to August. This gradual rise culminates in a refreshing breeze that makes September particularly appealing for outdoor activities. The shifting winds not only invigorate the landscape but also signal the anticipation of upcoming seasonal changes, enhancing Armacao's charm as a destination for nature lovers and thrill-seekers alike.
Weather in Armacao varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Armacao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures range from a mild 13°C (55°F) at night to a comfortable maximum of 25°C (77°F) during the day, with an average temperature of 19°C (66°F). While the month experiences a significant amount of rainfall at 104 mm (4.1 in) over 13 days, it retains a relatively high humidity level of 82%.
In contrast, January brings warmer temperatures, with nighttime lows at 21°C (70°F) and daytime highs reaching up to 32°C (91°F), yielding an average temperature of 25°C (78°F). This month is also wetter, receiving 184 mm (7.2 in) of rain over 17 days, and has a slightly higher humidity at 86%. For a more detailed comparison of January weather, visit Armacao weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 25°C (77°F), with an average of 19°C (66°F). The month experiences 104 mm (4.1 in) of rainfall over 13 days, accompanied by high humidity at 82%. In contrast, February boasts warmer temperatures, with a minimum of 19°C (67°F) and a maximum reaching 32°C (89°F), averaging 25°C (77°F). This month sees slightly higher precipitation levels at 133 mm (5.2 in) over 16 days, with humidity at 83%. For more detailed information about February weather, you can visit Armacao weather in February.
When comparing the weather in September and March, several notable differences emerge. September features milder temperatures with a minimum of 13°C (55°F) and an average of 19°C (66°F), while March boasts warmer conditions, starting with a minimum of 20°C (68°F) and averaging 24°C (76°F). Additionally, March sees higher maximum temperatures, reaching 30°C (87°F) compared to September's 25°C (77°F). Precipitation is also greater in March, with 130 mm (5.1 in) falling over 19 days, compared to September's 104 mm (4.1 in) across 13 days. Humidity remains relatively high in both months, with September at 82% and March slightly higher at 85%. For more details on the weather specifics in March, visit Armacao weather in March.
September and April weather exhibit noticeable differences in temperature and precipitation patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 25°C (77°F), with an average of 19°C (66°F). The month sees substantial rainfall, accumulating to 104 mm (4.1 in) over 13 days, while humidity levels hover around 82%. Conversely, April boasts warmer temperatures, with a minimum of 17°C (62°F), an average of 22°C (72°F), and a maximum of 28°C (83°F). Precipitation is lower at 82 mm (3.2 in), also over 13 days, and humidity is slightly higher at 85%. For a more detailed look at the weather specifics, check out Armacao weather in April.
When comparing the weather in September and May, we notice that both months have similar minimum temperatures, with September averaging 13°C (55°F) and May slightly warmer at 13°C (56°F). However, May tends to be a bit warmer overall, with average daily temperatures peaking at around 28°C (83°F), compared to September’s maximum of 25°C (77°F). In terms of precipitation, May experiences slightly higher rainfall at 121 mm (4.8 in) over 13 days, while September receives 104 mm (4.1 in) on the same number of days. Additionally, humidity levels are higher in May at 86%, compared to September's 82%. For those interested in more detailed weather patterns, you can check out Armacao weather in May.
When comparing the weather in September and June, we observe some notable differences. September typically features a warmer average temperature of 19°C (66°F), compared to June's average of 18°C (65°F). Both months have the same maximum temperature of 25°C (77°F), but September has a slightly higher minimum temperature of 13°C (55°F) versus June's 9°C (48°F). In terms of precipitation, June experiences slightly more rainfall with 133 mm (5.2 in) over 10 days, while September sees 104 mm (4.1 in) across 13 days, leading to a marginally lower humidity level of 82% in September compared to 85% in June. For more detailed information on June weather, you can visit Armacao weather in June.
September and July showcase some notable differences in their weather patterns. While both months experience a maximum temperature of 25°C (77°F), September tends to be warmer overall with an average temperature of 19°C (66°F) compared to July's cooler average of 17°C (63°F). Additionally, September is characterized by significantly higher precipitation at 104 mm (4.1 in) over 13 days, compared to July's 51 mm (2.0 in) over just 7 days. Humidity levels are relatively similar, with September at 82% and July at 80%, but the increased rainfall in September contributes to a more humid atmosphere. For a detailed look at weather conditions specific to July, check out this link: Armacao weather in July.
When comparing the weather in August and September, September tends to be warmer and wetter. While August has a minimum temperature of 10°C (50°F) and an average of 17°C (63°F), September shows a slight increase with a minimum of 13°C (55°F) and an average of 19°C (66°F). The maximum temperatures also rise from 23°C (74°F) in August to 25°C (77°F) in September. Additionally, September experiences significantly more precipitation, measuring 104 mm (4.1 in) over 13 days compared to August’s 63 mm (2.5 in) over just 8 days. The humidity levels are comparable, with September registering at 82% and August at 79%. For more details on August weather, you can check Armacao weather in August.
September generally features milder temperatures, with averages around 19°C (66°F) and a maximum of 25°C (77°F), while October brings a slight increase, averaging 20°C (69°F) and peaking at 27°C (81°F). Precipitation also climbs in October, rising to 141 mm (5.6 in) over 17 days compared to September's 104 mm (4.1 in) spread across 13 days. Both months maintain a similar humidity level at 82%, contributing to a consistently tropical feel in the atmosphere. For more detailed insights, you can check Armacao weather in October.
In comparing the weather of September and November, it is evident that November features slightly warmer temperatures, with an average of 22°C (71°F) compared to September's 19°C (66°F). The maximum temperatures also rise, reaching up to 29°C (84°F) in November, while September peaks at 25°C (77°F). Both months experience similar levels of precipitation, with November recording 105 mm (4.1 in) over 15 days, just slightly more than September's 104 mm over 13 days. Humidity levels are also slightly higher in November at 86%, compared to September's 82%. For a detailed look at November weather, you can visit Armacao weather in November.
In comparing the weather between September and December, it's clear that December experiences warmer temperatures overall. In September, the temperatures range from a minimum of 13°C (55°F) to a maximum of 25°C (77°F), with an average of 19°C (66°F). In contrast, December's temperatures rise, ranging from a minimum of 17°C (63°F) to a maximum of 30°C (86°F), averaging 23°C (74°F). Additionally, December sees a slight increase in both precipitation and humidity, with 140 mm (5.5 in) of rain over 16 days and humidity levels at 88%, compared to September's 104 mm (4.1 in) over 13 days and 82% humidity. For more detailed information, you can check Armacao weather in December.
As September rolls in, Armacao experiences a gentle transition into spring, marked by milder temperatures and increased humidity levels. With an average temperature hovering around 19°C (66°F), this month provides a pleasant reprieve from the summer heat, though visitors should be prepared for some rain, as precipitation occurs on about 13 days. The combination of warmth and lingering dampness can create a refreshing atmosphere, making it a unique time to explore the stunning coastal scenery. For a comprehensive look at how September fits into the broader climate context, check out Armacao Climate.